The River Quoile is located in County Down, Northern Ireland, flowing through Downpatrick before reaching the Quoile Barrage, where it empties into Strangford Lough. The river originates as the Ballynahinch River, transitions into the Annacloy River, and is generally known as the Quoile from Annacloy southward through Downpatrick. The upper section of the Annacloy River, from Mason's Bridge to Kilmore, offers white water paddling, while the stretch from Kilmore to Annacloy is mostly flat water with a few weirs. From Annacloy down through Downpatrick to the Barrage, the river is completely flat water.

The most commonly paddled section for recreational trips runs from Jane's Shore, accessed via a mud lane-way approximately one mile from the main Downpatrick roundabout (grid reference J 487464), upstream past Inch Abbey. This stretch is surrounded by woodland and is noted for its abundance of waterfowl and swans. The river along this section has become a haven for freshwater wildlife. The car park below the bridge on the Quoile River serves as a common meeting and launch point for organized paddles.

The flat-water section from Jane's Shore to Inch Abbey is suitable for all abilities, from beginners to experienced paddlers. Organized recreational paddles on this section typically run from around 10:00am to 3:00pm, with a relaxed pace, breaks, and a lunch stop included. The Quoile Yacht Club is also situated in the area near Strangford Lough, where strong tides and currents are a consideration for those paddling closer to the lough itself.

Inch Abbey, a medieval monastic site with connections to Viking history, is a notable landmark along the river. Guided canoe tours are available through local operators, combining paddling with historical interpretation covering the river's role in trade, protection, and settlement throughout history. The Quoile Yacht Club, located near the Barrage, offers facilities including water, diesel, a slipway, shore power, toilets, showers, and a pontoon, though the pontoon is primarily intended for yacht club members and visiting boats rather than canoeists.

Under-16s on organized paddles are required to be accompanied by an adult. All paddles are subject to weather conditions.